WASHINGTON — Earth just keeps getting hotter. July was the planet’s warmest month on record, smashing old marks, U.S. weather officials said.

And it’s almost a dead certain lock that this year will beat last year as the warmest year on record, they said.

July’s average temperature was 61.86 degrees Fahrenheit, beating the previous global mark set in 1998 and 2010 by about one-seventh of a degree, according to figures released Thursday by the National Oceanic and Atmospheric Administration. That’s a large margin for weather records, with previous monthly heat records broken by a 20th of a degree or less.

NOAA records go back to 1880. Separate calculations by NASA and the Japanese weather agency also found July to be a record.

The first seven months of 2015 were the hottest January-to-July span on record, according to NOAA. The seven-month average temperature of 58.43 degrees is 1.53 degrees warmer than the 20th-century average and a sixth of a degree warmer than the old record set in 2010. Scientists say the temperatures are caused by man-made climate change and a strong, near-record El Nino.


Only subscribers are eligible to post comments. Please subscribe or login first for digital access. Here’s why.

Use the form below to reset your password. When you've submitted your account email, we will send an email with a reset code.